Phantom Rose

Fujima Shintaro was an orphan adopted by a dark organization named "Dark Souls". This organization are groups of assassin who eliminates people deserving death. To the people they uphold justice but in reality, they do it for the money. Fujima is a 1st year high school student who is a member of the organization and is labeled as a prodigy assassin. He would leave a rose on the chest of his victims earning him the nickname "Phantom Rose".